# Supabase gradient

Gradients derived from Supabase's published colour tokens (nominative use; no brand assets). Deterministic: the same values are served as `--brand-gradient*` in the brand's brand.css.

- Page: https://brandsweets.com/gradients/brands/supabase
- Brand colors: https://brandsweets.com/colors/brands/supabase · Brand page: https://brandsweets.com/b/supabase
- Palette: primary #3ecf8e, secondary #95e6b8, accents #bda4ff
- Source: https://supabase.com (extracted 2026-09-02)

## Brand gradient

ΔE_OK 0.111 < 0.15 between #3ecf8e and #95e6b8 — a 2-stop would read as a flat fill, so this is a tonal ramp of #3ecf8e.

- CSS: `linear-gradient(135deg in oklch shorter hue, #9cffce 0%, #3ecf8e 50%, #009559 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#9cffce] via-[#3ecf8e] to-[#009559]`
- Contrast (worst point): white 1.19:1 fail · black 5.44:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.9cffce-3ecf8e-009559?a=135&in=oklch&hue=shorter

## Hero background

Chroma ×0.35 so it can carry text; ink black (inkFor at the midpoint). Passes AA for that ink at the worst point (5.20:1) without adjusting L.

- CSS: `linear-gradient(135deg in oklch shorter hue, #d0efde 0%, #95bda6 50%, #658671 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#d0efde] via-[#95bda6] to-[#658671]`
- Contrast (worst point): white 1.23:1 fail · black 5.20:1 AA · banding high · ink #000000
- Maker: https://brandsweets.com/gradients/new/v1.d0efde-95bda6-658671?a=135&in=oklch&hue=shorter

## Button / CTA

ΔL 0.08 top→bottom in the primary's hue (a lit surface, not a rainbow); hover L +0.03, active L −0.03. Black ink passes AA on the surface and both states (worst 8.17:1).

- CSS: `linear-gradient(180deg in oklch shorter hue, #4fdc9a 0%, #2ac282 100%)`
- Tailwind: `bg-linear-to-b/oklch from-[#4fdc9a] to-[#2ac282]`
- Contrast (worst point): white 1.75:1 fail · black 9.14:1 AA · banding high · ink #000000
- Maker: https://brandsweets.com/gradients/new/v1.4fdc9a-2ac282?a=180&in=oklch&hue=shorter
- Hover: `linear-gradient(180deg in oklch shorter hue, #5be6a4 0%, #39cc8b 100%)`
- Active: `linear-gradient(180deg in oklch shorter hue, #42d291 0%, #16b879 100%)`

## Tonal ramp

- CSS: `linear-gradient(135deg in oklch shorter hue, #9cffce 0%, #3ecf8e 50%, #009559 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#9cffce] via-[#3ecf8e] to-[#009559]`
- Contrast (worst point): white 1.19:1 fail · black 5.44:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.9cffce-3ecf8e-009559?a=135&in=oklch&hue=shorter

## Analogous

Partner hue from the analogous rule at the source colour's lightness.

- CSS: `linear-gradient(135deg in oklab, #3ecf8e 0%, #8dc737 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#3ecf8e] to-[#8dc737]`
- Contrast (worst point): white 1.99:1 fail · black 10.32:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.3ecf8e-8dc737?a=135

## Complementary

Partner hue from the complementary rule at the source colour's lightness. ΔH 180° > 140° — interpolating in oklch (shorter hue) keeps the midpoint saturated.

- CSS: `linear-gradient(135deg in oklch shorter hue, #3ecf8e 0%, #f782d5 100%)`
- Tailwind: `bg-linear-to-br/oklch from-[#3ecf8e] to-[#f782d5]`
- Contrast (worst point): white 1.94:1 fail · black 9.08:1 AA · banding medium
- Maker: https://brandsweets.com/gradients/new/v1.3ecf8e-f782d5?a=135&in=oklch&hue=shorter

## Triadic

Partner hue from the triadic rule at the source colour's lightness.

- CSS: `linear-gradient(135deg in oklab, #3ecf8e 0%, #a3aaf6 100%)`
- Tailwind: `bg-linear-to-br/oklab from-[#3ecf8e] to-[#a3aaf6]`
- Contrast (worst point): white 1.99:1 fail · black 9.61:1 AA · banding high
- Maker: https://brandsweets.com/gradients/new/v1.3ecf8e-a3aaf6?a=135

## CSS custom properties (brand.css)

```css
:root {
  /* Brand gradient (derived) */
  /* worst-case contrast: white 1.19:1, black 5.44:1 AA */
  --brand-gradient: linear-gradient(135deg in oklch shorter hue, #9cffce 0%, #3ecf8e 50%, #009559 100%);
  /* hero — worst-case contrast: white 1.23:1, black 5.20:1 AA; ink passes AA at the worst point */
  --brand-gradient-hero: linear-gradient(135deg in oklch shorter hue, #d0efde 0%, #95bda6 50%, #658671 100%);
  --brand-gradient-hero-ink: #000000;
  /* button — worst-case contrast: white 1.75:1, black 9.14:1 AA */
  --brand-gradient-button: linear-gradient(180deg in oklch shorter hue, #4fdc9a 0%, #2ac282 100%);
  --brand-gradient-button-hover: linear-gradient(180deg in oklch shorter hue, #5be6a4 0%, #39cc8b 100%);
  --brand-gradient-button-active: linear-gradient(180deg in oklch shorter hue, #42d291 0%, #16b879 100%);
  --brand-gradient-button-ink: #000000;
}
```

## Gradient maker

Every maker URL is the gradient's state: `/gradients/new/v1.<hex>-<hex>[_pos]?a=135&in=oklch&hue=shorter&e=soft&g=8`. Hand one to a human, let them refine, and read the link they return.

## Connect an agent

Point any MCP client at the BrandSweets gradients endpoint for the same engine and corpus:

- Endpoint: https://mcp.brandsweets.com/gradients/mcp
- Tools: `make_gradient` (2–5 colours → CSS with the interpolation space, Tailwind v4, SVG, PNG URL, DTCG token + the contrast/banding/gamut report), `brand_gradients` (brand slug or palette → brand gradient, hero, button, variants).
- Resource: `gradients://corpus` — the whole bundled corpus as JSON.